has anyone had success on creating a Filter to get appointments on a certain date? What I tried to do so far was to create a filtergroup with op='and' for
(1) @type='Appointment'
(2) this is the problem - how do I define a FilterEntry to specify a date?
I can easily define something like
x.field = 'startDate'
x.op = 'fieldGT'

but can I declare something like x.date = '2010-12-25T17:45:00Z"?

or do I have to create some kind of new object to define the date? If so, which one?